Teresa De Sio (born 3 November 1952) is an Italian pop-folk singer and songwriter. She is the elder sister of actress Giuliana De Sio. Life and career Teresa De Sio was born in Naples and grew up in
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd714addac942c4c13b307d400f6969da9be69249d727cd37fd581823f4152176. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9ddd74d-ac76-47c3-8c31-2c5fd311d020.json and https://artists.proofprofile.net/proofs/artist/c9ddd74d-ac76-47c3-8c31-2c5fd311d020.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79725d09d22a64373ccfaf26a55df0fc68fbe49b5456354db00353dbafe77165. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT7009710700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8d45caa59f222b87d61d3ee4047b94d9b68c2aa5801b89f353cd654702d9d1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITUM70800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b593fe877f59108a9f15d1af8dfbf5a5d0f72740e6457a0ca67da2771038933. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITUM70800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8399e6af383e241ea47a507164e2c26dcd29779148aa72bde5be266a8ff552. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT7009710720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1800e9ce260c3bdf959f625fe3c269f556d672b990fe1bf123e619a8f779ee2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT7000300321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092ae599e2f1c11135d848dafe9743224bb2ab5918963d1000465a196b170ac1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT7009813000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae9aa50b6649d2a2fdeaa2fbd9707b435820523f62f1257dc2e23d484371a03. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT7009812990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0817ba217e7a89dcef0799688af4273cd9559ac22636ac347799caf3ba7984ea. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP811100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe196a19801f4b41445287a4b71b195abfcaf5d90e76849b86b7bde72b9f17b11. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT7YL1910003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcd5789cfa420410cb2c09c40db49bff226763bb3b4a854ef9f5b676642d3e4. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITR007800836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f71474afcb3fa965b2ce15a769750004abf7e36f155525648c00161df0accb5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB000200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c65fc971d8a57423bbb8cef7273f9fbb3eeb9df73a8ad6391a7df2c62c7350b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITUM70701208.